| 一种710MHzLTE天线的去耦合分析 |
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| 引用本文： | 赵飞,朱守正. 一种710MHzLTE天线的去耦合分析[J]. 现代电子技术, 2011, 34(13): 30-33 |
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| 作者姓名： | 赵飞 朱守正 |
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| 作者单位： | 华东师范大学,上海,200241 |
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| 摘 要： | 为了提高天线的容量和发射接收速率，LTE通信系统使用了MIMO天线。由于移动终端上空间有限，多个天线间存在较大耦舍，天线的辐射效率和通信容量会降低。为了解决这一问题，从S参数的角度推导出了天线的正交辐射模式，提出了通过加入180。耦舍器来降低多个天线间耦合的方法。使用HFSS和ADS对设计好的710MHz天线进行联合仿真，结果显示加入耦舍器后，两个天线间的耦合明显减小。这种设计使得该天线可以很好地应用于LTE通信系统的移动终端。
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| 关 键 词： | LTE MIMO天线 耦合器 正交模式 |
Decoupling Analysis of 710MHz LTE Antenna |
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| ZHAO Fei,ZHU Shou-zheng. Decoupling Analysis of 710MHz LTE Antenna[J]. Modern Electronic Technique, 2011, 34(13): 30-33 |
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| Authors: | ZHAO Fei ZHU Shou-zheng |
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| Affiliation: | ZHAO Fei,ZHU Shou-zheng(East China Normal Univeisity,Shanghai 200241,China) |
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| Abstract: | In order to improve the capacity and transceiving vocitey of antennas, MIMO antenna is used in LTE sysyem. But design and implementation of multiple antennas for small portable terminals become a serious technical challenge, especially at low frequencies, because there is more couping between antennas. Therefore, a systematic approach for the design of lossless decoupling based on 180° directional couplers is proposed for the coupleing of two antennas. HFSS and ADS are adopted for the simulation of 710 MHz antenna. It is found that the isolation between antennas increases, which makes it suitable for LTE-standardized mobile phones. |
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| Keywords: | LTE MIMO antenna coupler orthogonal mode |
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